Image designed by Jennifer L. Bowie. Image credits:
Ruhsam, William. (2008). “AKG Perception 220 Microphone.” Posted 8/17/2008 on Flickr with an Attribution-Noncommercial-Share Alike 2.0 Generic Creative Commons License.
Brassey, Anna a. (1878-83). Illustration from A Voyage in the Sunbeam, our Home on the Ocean for Eleven Months. Image is in the public domain.